1431655764

Appears in sequences

• a(n) = a(n-1) + 2*a(n-2) + 2, for n>=3, where a(0)= 1, a(1)= 2, a(2)= 4.at n=30A026644
• Totient of 2^n+1.at n=31A053285
• Partial sums of Jacobsthal gap sequence.at n=30A080610
• a(n) = (4/3)*(4^n - 1).at n=15A080674
• Expansion of x*(1+2*x)/((1+x)*(1-x)*(1-2*x)).at n=30A084639
• Binomial transform of (-1)^mod(n,3) (A257075).at n=32A086953
• Expansion of (1+x-4*x^2) / ((1+x)*(1-4*x^2)).at n=31A087213
• Expansion of (1 - 2*x + 2*x^2)/((1 - x^2)*(1 - 2*x)).at n=31A097072
• Expansion of (1-x+2*x^2)/((1+x)*(1-2*x)).at n=31A097073
• Expansion of (1+3x)/((1-x)(1-4x^2)).at n=29A097164
• Expansion of x^3 / ((x-1)*(2*x-1)*(x^2-x+1)).at n=32A111927
• Expansion of -2*x*(-3-2*x+4*x^2) / ((x-1)*(2*x+1)*(2*x-1)*(1+x)).at n=30A120462
• Binomial transform of A101000.at n=30A130624
• a(n) = 3a(n-1) - 3a(n-2) + 2a(n-3), a(0) = 3, a(1) = 2, a(2) = 0.at n=32A131370
• a(1)=1, a(n) = a(n-1) + (p-1)*p^(n/2-1) if n is even, else a(n) = a(n-1) + p^((n-1)/2), where p=4.at n=29A133628
• Second differences of Jacobsthal sequence A001045, pairs with even and odd indices swapped.at n=33A140505
• Duplicate of A080674.at n=14A155721
• a(n) = 2*a(n-1) - a(n-3) + 2*a(n-4) for n>3, a(0)=a(1)=1, a(2)=0, a(3)=2.at n=32A166249
• Decimal representation of the n-th iteration of the "Rule 133" elementary cellular automaton starting with a single ON (black) cell.at n=16A267457
• a(n) = J(n) if n odd, or 4*J(n) if n even, where J = Jacobsthal numbers A001045.at n=30A270797